| Jurisdiction: | Diocese |
| Nova Friburgo | |
| Latin: | Dioecesis Neo-Friburgensis |
| Country: | Brazil |
| Rite: | Roman Rite |
| Established: | 26 March 1960 (years ago) |
| Cathedral: | Catedral São João Batista |
| Area Km2: | 10,086 |
| Population: | 620,000 |
| Population As Of: | 2004 |
| Catholics: | 503,000 |
| Catholics Percent: | 81.1 |
| Bishop: | Luiz Antônio Lopes Ricci |
| Emeritus Bishops: | Edney Gouvea Mattoso |
| Website: | diocesenf.org.br |
| Sui Iuris Church: | Latin Church |
The Roman Catholic Diocese of Nova Friburgo (la|Dioecesis Neo-Friburgensis) is a diocese located in the city of Nova Friburgo in the ecclesiastical province of Niterói in Brazil.